4989181916 has 12 divisors (see below), whose sum is σ = 8731858632. Its totient is φ = 2494365168.

The previous prime is 4989181909. The next prime is 4989181927. The reversal of 4989181916 is 6191819894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590 + ... + 99893.

It is an arithmetic number, because the mean of its divisors is an integer number (727654886).

Almost surely, 2^4989181916 is an apocalyptic number.

It is an amenable number.

4989181916 is a deficient number, since it is larger than the sum of its proper divisors (3742676716).

4989181916 is a wasteful number, since it uses less digits than its factorization.

4989181916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112900 (or 112898 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 56.

The square root of 4989181916 is about 70634.1412915879. The cubic root of 4989181916 is about 1708.7418119548.

The spelling of 4989181916 in words is "four billion, nine hundred eighty-nine million, one hundred eighty-one thousand, nine hundred sixteen".